Count the Books on Shelf

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?




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The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.